Martin Truex Jr. Crown Royal 2005 Firebird IROC Xtreme Action Racing Collectables 1:24 Scale 1 of 2460 P/N: 109508 / 110729. This car was powered by a 500 horsepower, race prepared 358-cubic-inch (5.86L) Chevrolet V8 engine designed by Laughlin Racing Products. When car was purchased it was removed from packaging and placed in a dust proof acrylic case in a smoke free environment, and remained there until it was replaced in the original packaging.